Category Archives: Project

Hard Disk Fun

Having some fun with old hard disks…. by taking them apart of course Pics here. There’s some interesting parts inside. Some fantastically strong magnets and an air core coil are used to position the heads. Stepper motors are long gone from hard drives! Might try some wireless charging experiments with the coil. The platters themselves […]

Lego Automaton Jukebox – stage 0.2 incomplete, stage 0.3 started

It takes time & certain amount of failed ideas to design anything. Ideas rarely come in a box, they require slow birth rather than rapid unpacking. STAGE 0.1 Idea B: “What would you build if I gave you a coin counter? I: ”Any purpose?” B: ”Yes, to make a machine so the visitors put money […]

Playing with the IMAX charger

Got an IMAX B6 mini charger to play with. Pics here. This charger will charge and discharge lots of different battery chemistries. We recently acquired some 6-volt lead acid sealed lead acid batteries….believed to be from a UPS. Two of them powered our buzzer game during the recent Dublin Maker. We’re using the discharge function […]

Vintage Electronics 2

Following the build of our 1978 Metal Detector, next up in our Vintage Electronics series will be a Digital Bicycle Speedometer.  In the March 1977 issue of Popular Electronics, they published an article for a digital speedometer complete with red LED displays. This will be a build from the original magazine which we have in […]

It’s Alive!

More progress with our vintage metal detector today. Fired up the oscillator section of the PCB and its working away at 126kHz…. very close to design frequency.   We’re going to continue to work on it, with the intention of having it ready for Dublin Maker in less than 2 weeks time. Pics of the […]

Lasersaur, Android Netrunner & laser cut tokens…

In recent weeks, a few of our board game fanatics have met on Friday evenings in Tog. We have played some games, we laughed & decided to utilize laser cutter to make extra sturdy Acrylic tokens for a game called Androind: Netrunner. A good bit of graphical artwork was already online (thx for a great […]